Photo 1 of YOKIVE 10Pcs Rubber Stoppers with Hole, Tapered Plugs with High-Temperature Resistance | Protect Hole, Great for Lab Industry (Black, 30mm to 37mm)

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Photo 1 of YOKIVE 10Pcs Rubber Stoppers with Hole, Tapered Plugs with High-Temperature Resistance | Protect Hole, Great for Lab Industry (Black, 30mm to 37mm)Photo 2 of YOKIVE 10Pcs Rubber Stoppers with Hole, Tapered Plugs with High-Temperature Resistance | Protect Hole, Great for Lab Industry (Black, 30mm to 37mm)